Evaluasi Mutu Beton Geopolimer menggunakan High Calcium fly Ash Molaritas 8 Dengan Metode Pencampuran kering

Wibisana, Adiyatma Irfa (2023) Evaluasi Mutu Beton Geopolimer menggunakan High Calcium fly Ash Molaritas 8 Dengan Metode Pencampuran kering. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Makalah ini membahas penelitian tentang pengaruh molaritas sebesar 8 M, terhadap beton geopolymer dengan menggunakan Abu Terbang tipe C (Fly Ash tipe C). Dalam penelitian ini, dibuat benda uji beton geopolymer berbentuk silinder dengan diameter 10 cm dan tinggi 20 cm sebanyak 30 pasang, digunakannya 30 pasang benda uji silinder dikarenakan standar deviasinya yang kecil. Dengan jumlah sampel sebanyak itu maka peneliti mampu mencari kuat tekan karakteristik untuk beton geopolimer dengan 8M. Beton ini dibuat dengan mencampurkan fly ash, Alkali Aktivator, superplaticizer, kerikil, pasir dan air. Alkali aktivator yang digunakan berupa Natrium Hidroksida (NaOH) dan Natrium Silikat (Na2SiO3), dan superplazticizer (SP) yang digunakan adalah merk Sika Viscocrete 3115 N, digunakan dengan kadar sebesar 5.0%, digunakan untuk meningkatkan workability beton segar sehingga mudah untuk dikerjakan. menggunakan metode campuran kering (dry mixing), metode ini digunakan karena dapat meningkatkan mutu beton geopolymer, Perawatan beton dilakukan dengan menyimpan beton geopolymer kedalam wadah plastik yang tertutup selama 28 hari. Penelitian ini bertujuan untuk mengetahui bagaimana cara mengevaluasi mutu beton geopolimer dengan 8M dan mengetahui peforma beton geopolimer terhadap beberapa pengetesan, Pengujian yang dilakukan adalah uji Slump (SNI 1972:2008), Uji UPV (BS 1881-203;ASTM C597) Uji Permability (SN 505 252/1, Annex E) Uji Hammer (ASTM C805) dan kuat tekan (SNI 1974-2011). Sebelum melaksanakan pengujian beton geopolimer. material penyusun beton geopolimer juga perlu dilakukan pengujian, seperti uji XRF dan XRD untuk fly ash. Pencampuran material molaritas berupa NaOH dilaksankakan dengan menggukan metode campuran kering (dry mixing) dikarenakan dapat meningkatkan mutu beton geopolimer, Setelah beton segar berhasil dibuat maka dilakukan pengetesan slump untuk mengetahui workability beton. perawatan yang dilakukan yaitu perawatan suhu ruangan dengan dibungkus kantong plastik selama 28 hari. Hasil yang ingin kami capai adalah mutu kararistik yang didapat dari beton geopolimer molatitas 8 sebagai acuan standar pembuatan beton geopolimer kedepanya yaitu 2.26 Mpa dengan standar deviasi 1.24 Mpa, Pengujian yang didapat adalah uji Slump 230 mm, uji resistivitas mendapat hasil kemungkinan korosif untuk 30 pasang sampel, korelasi uji kuat tekan terhadap UPV didapat R2 yaitu 0.3 , korelasi uji kuat tekan terhadap Hammer didapat R2 yaitu 0.3 dan uji Kuat tekan didapat rata-rata 3.16 Mpa, dari hasil pengujian ini diharapkan mampu membantu berbagai jenis penelitian beton geopolimer selanjutnya.
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This paper discusses research on the effect of a molarity of 8 M on geopolymer concrete using type C Fly Ash. pairs of cylindrical specimens due to their small standard deviation. with that many samples, the researchers were able to find the characteristic compressive strength for geopolymer concrete with a molarity of 8. This concrete was made by mixing fly ash, Alkali Activator, superplasticizer, gravel, sand and water. The alkaline activators used are Sodium Hydroxide (NaOH) and Sodium Silicate (Na2SiO3), and superplasticizer (SP) used is the brand Sika Viscocrete 3115 N, used with a content of 5.0%, is used to increase the workability of fresh concrete so it is easy to work with. Mixing the molarity material in the form of Sodium Hydroxide (NaOH) is carried out using the dry mixing method, this method is used because it can improve the quality of geopolymer concrete, Concrete treatment is carried out by storing geopolymer concrete in a closed plastic box for 28 days. This study aims to find out how to evaluate the quality of geopolymer concrete with 8M and find out the performance of geopolymer concrete against several tests, The tests carried out are the Slump test (SNI 1972:2008), UPV Test (BS 1881-203; ASTM C597) Permability Test (SN 505 252/1, Annex E) Hammer Test (ASTM C805) and compressive strength (SNI 1974-2011). Before carrying out geopolymer concrete testing. Geopolymer concrete constituent materials also need to be tested, such as XRF and XRD tests for fly ash. Molarity material mixing in the form of NaOH is carried out using the dry mixing method because it can improve the quality of geopolymer concrete, After fresh concrete is successfully made, slump testing is carried out to determine the workability of concrete. The treatment carried out is room temperature treatment wrapped in a plastic bag for 28 days. The result we want to achieve is the characteristic quality obtained from 8 molatity geopolymer concrete as a reference for the future geopolymer concrete manufacturing standard, which is 2.26 Mpa with a standard deviation of 1.24 Mpa, The test obtained is the 230 mm Slump test, resistivity test obtained possible corrosive results for 30 pairs of samples, correlation of compressive strength test to UPV obtained R2 which is 0.3, correlation of compressive strength test to Hammer obtained R2 which is 0.3 and compressive strength test obtained on average 3.16 Mpa, from the results of this test is expected to be able to help various types of geopolymer concrete research further.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	beton geopolimer, evaluasi mutu beton, alkali aktivator, campuran kering, fly ash, Dry mixing
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA440 Concrete--Cracking.
Divisions:	Faculty of Vocational > Civil Infrastructure Engineering (D4)
Depositing User:	Adiyatma Irfa Wibisana
Date Deposited:	08 Aug 2023 01:39
Last Modified:	08 Aug 2023 01:39
URI:	http://repository.its.ac.id/id/eprint/103146

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